diff options
author | David S. Miller <davem@davemloft.net> | 2009-03-26 15:23:24 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2009-03-26 15:23:24 -0700 |
commit | 08abe18af1f78ee80c3c3a5ac47c3e0ae0beadf6 (patch) | |
tree | 2be39bf8942edca1bcec735145e144a682ca9cd3 /fs/sysfs/dir.c | |
parent | f0de70f8bb56952f6e016a65a8a8d006918f5bf6 (diff) | |
parent | 0384e2959127a56d0640505d004d8dd92f9c29f5 (diff) |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
drivers/net/wimax/i2400m/usb-notif.c
Diffstat (limited to 'fs/sysfs/dir.c')
-rw-r--r-- | fs/sysfs/dir.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index 82d3b79d0e0..66aeb4fff0c 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -434,6 +434,26 @@ int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd) } /** + * sysfs_pathname - return full path to sysfs dirent + * @sd: sysfs_dirent whose path we want + * @path: caller allocated buffer + * + * Gives the name "/" to the sysfs_root entry; any path returned + * is relative to wherever sysfs is mounted. + * + * XXX: does no error checking on @path size + */ +static char *sysfs_pathname(struct sysfs_dirent *sd, char *path) +{ + if (sd->s_parent) { + sysfs_pathname(sd->s_parent, path); + strcat(path, "/"); + } + strcat(path, sd->s_name); + return path; +} + +/** * sysfs_add_one - add sysfs_dirent to parent * @acxt: addrm context to use * @sd: sysfs_dirent to be added @@ -458,8 +478,16 @@ int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd) int ret; ret = __sysfs_add_one(acxt, sd); - WARN(ret == -EEXIST, KERN_WARNING "sysfs: duplicate filename '%s' " - "can not be created\n", sd->s_name); + if (ret == -EEXIST) { + char *path = kzalloc(PATH_MAX, GFP_KERNEL); + WARN(1, KERN_WARNING + "sysfs: cannot create duplicate filename '%s'\n", + (path == NULL) ? sd->s_name : + strcat(strcat(sysfs_pathname(acxt->parent_sd, path), "/"), + sd->s_name)); + kfree(path); + } + return ret; } @@ -581,6 +609,7 @@ void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt) sysfs_drop_dentry(sd); sysfs_deactivate(sd); + unmap_bin_file(sd); sysfs_put(sd); } } |